package com.atguigu.springcloud.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

@Service
public class PaymentService {
    /**
     * 正常访问，肯定OK
     * @param id
     * @return
     */
    public String paymentInfo_OK(Integer id){
        return "线程池："+Thread.currentThread().getName()+"   paymentInfo_OK,id:"+id+"\t"+"O(∩_∩)O哈哈~";
    }


    @HystrixCommand(fallbackMethod = "paymentInfo_TimeOutHandler",commandProperties = {
       @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds",value = "5000")
    })
    public String paymentInfo_TimeOut(Integer id){
        int timeNumber=5;
        try {
            TimeUnit.MILLISECONDS.sleep(13000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return "线程池："+Thread.currentThread().getName()+"    paymentInfo_TimeOut,id:"+id+"\t"+"O(∩_∩)O哈哈~"
                +" 耗时"+timeNumber+"秒钟";
    }

    public String paymentInfo_TimeOutHandler(Integer id){
        return "线程池："+Thread.currentThread().getName()+"\t系统繁或者运行报错，请稍后再试,id:"+id+"o(╥﹏╥)o";
    }

    //=====服务熔断
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback",commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled",value = "true"),//是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value = "10"),//请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value = "10000"),//时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value = "60"),//失败率达到多少后跳闸
    })
    public String paymentCircuitBreaker(@PathVariable("id")Integer id){
        if (id<0){
            throw  new RuntimeException("******id 不能负数");
        }
        String serialNumber= IdUtil.simpleUUID();
        return Thread.currentThread().getName()+"\t"+"调用成功，流水号："+serialNumber;
    }

    public String paymentCircuitBreaker_fallback(@PathVariable("id")Integer id){
        return "id 不能负数，请稍后再试，o(╥﹏╥)o  id："+id;
    }


}
